Lamp



FIG. 1 is a perspective front view of a lamp showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left elevational view thereof; and,

FIG. 7 is a right elevational view thereof.

The broken lines are included for the purpose of illustrating portions of the lamp that form no part of the claimed design. 

CLAIM The ornamental design for a lamp, as shown and described. 